[rancid] mtrancid +- connection closed? Conf Diff

[heasley]

Wed, Jan 16, 2019 at 01:04:35PM -0800, Jason Wu:
> Thank you for your response
> 
> Yup, these routers are running on version 6.38.7 along side with routers
> that do not have this issue.
> There does not seem to be any regularity/pattern to this. As the dates are
> rather staggered apart. Some days it'll be continuous for a week other
> times it'll be a week before re-appearing.
> 
> I am unable to reproduce it running mtrancid at the shell.(No email for a
> configuration diff). Going through the different SVN diffs gives me
> 
> -Connection to <myrouter> closed
> ============================
> +Connection to <myrouter> closed
> 
> thanks for your time

Could you show me more context around this line from the file in the
configs/ directory?

How kinky are you willing to be to collect debug info?  If NOPIPE=YES is
set in rancid.conf and -d is added to the script line in rancid.types.base,
then .raw files will be left behind and the rancid-run cron can be altered
to collect those files, like so:

<timespec> <rancid-run cmd>; ; D=`date +\%Y-\%m-\%d:\%H`; mkdir -p tmp/$D && cp -p <rancidgroupname>/configs/*.raw tmp/$D

and when you next discover the change, we look at the input in detail.

> On Wed, Jan 16, 2019 at 9:51 AM heasley <heas at shrubbery.net> wrote:
> 
> > Tue, Jan 15, 2019 at 03:06:31PM -0800, Jason Wu:
> > > Hello friends,
> > >
> > > Just have a question regarding mtrancid
> > > For some reason I have been getting router config diffs emails which
> > > contain only +- connection close, which doesn't reflect a config change
> > and
> > > is strange.
> > >
> > > This only occurs on 1-2 devices
> > >
> > > Rancid 3.6.1
> > > =====================================
> > > Sample
> > >
> > > Revision 100
> > > - Connection to <myrouter> closed.
> > >
> > > =====================================
> > >
> > > Revision 98
> > >
> > > + Connection to <myrouter> closed.
> > >
> > >
> > > =====================================
> > >
> > > Mtrancid consists of
> > > systempackageprintdetail
> > > systemrouterboardprint
> > > export
> > >
> > > It seems that mtrancid is picking up the SSH session close
> > > Logs do not show any errors which means its reaching the end of run and
> > has
> > > a clean exit right?
> >
> > yes.
> >
> > are these running the same versoin as the routers that are not exibiting
> > the error?  does it occur with any regularity?  can you reproduce it
> > running mtrancid at the shell?
> >
> > > I am able to run all these commands with no problem and rancid-run gives
> > me
> > > no errors/hiccups.
> > > Execution is smooth and does not have any delays (<1minute)
> > >
> > > If there was a problem, the end-of-run detection would pick it up?
> > >
> > > Just going through the script and I can’t seem to identify where/why this
> > > would get picked up.
> > > I was wondering if anyone else has experienced this before. I could
> > always
> > > filter out the "connection closed" but I am curious why this is
> > happening.
> >
> >
> >